Hey guys, I wanna drop gears and a posi into my car this winter and am wondering which way to go. I was gonna snoop around until I found a wrecked car to take the rear out of. My question is I've heard that SLP sells a posi for $99 that works real well in our cars. I have a 91' Firebird with 2.73's which is a series one carrier I think. Is there somewhere I could buy 3.73's that would work with my carrier, or am I missing something. I f I could buy gears that would work with my carrier and get the posi for $99 I think that would be the cheapest way to go and even get new parts! Someone chime in on this please, anyone with experience? Thanks in advance.

 

Hello?? Anyone with some help???

 

I'm pretty sure with 2:73s you can get 3:73s. I think it's if you have 2:77s that you have to get something slightly different. And yes, I've heard the SLP take off posi works really well. And a word of advice, if your car is mostly stock I wouldn't go with 3:73s. Especially TPI since it stops breathing at 4500rpms. I'm sure some will say go ahead, or even if you plan future mods go ahead.